Analysis of Two-Grid Characteristic Finite Element Methods for Convection-Diffusion Equations

Table 2

Numerical results of two-steptwo-grid method Algorithm 1 and CFEM.

Two-steptwo-grid method Algorithm 1			CFEM
		Computing time (s)			Computing time (s)
	6.9703 e − 3	0.85		6.8595 e − 3	0.70
	4.4452 e − 4	2.68		4.3657 e − 4	4.53
	2.8049 e − 5	33.47		2.6173 e − 5	94.21
	1.8001 e − 6	252.49		1.6499 e − 6	896.04
Rate	2		Rate	2